Template:Geological range

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Usage
{{Geological range|first appearance (required)|last appearance|text to display|earliest=earliest putative fossil|latest=latest putative fossil|ref=References|prefix=anything to display before the range|PS=anything to display after the range}}
Note The first parameter (bold above) may not be omitted; in particular it is an error to specify only |earliest= and/or |latest=. Italic parameters are optional, bold required.
Example
Temporal range: Carboniferous–early Cretaceous
Scientific classification
Kingdom: Incertae sedis
Genus: Rangea
Species: Rangea examplus

Illustrates the fossil range of a taxon, the geological range of a stratigraphic unit, or other ranges on a geological timescale. Intended for use in {{taxobox}}es, {{Infobox rockunit}}s, and other infoboxes. For pre-Phanerozoic ages, see {{Long geological range}}.

You can give a numeric range, or specify the periods involved. The range will be quoted in text before the timeline, unless you specify a third parameter — leaving it blank will result in no text being provided.

To illustrate the range when it spans before the Ediacaran (i.e. deep into the precambrian), you should use Template:Long geological range, which works in exactly the same way as documented here.

You can also specify "earliest" and "latest" to add a "ghost" bar beyond the accepted fossil range. You can use these parameters for whatever you like; they may be useful in the case of living fossils such as the coelacanth, where you may wish to specify latest=0 to make the bar faintly extend to the present; they may also be useful where "earliest" fossils are not universally accepted — for instance, the octocorals only have a good fossil record from the Tertiary, but there are claims of Cambrian representatives. In this case, you may wish to specify earliest=middle Cambrian.

Examples
{{Geological range|Permian}}
Permian
{{Geological range|Permian|Jurassic}}
Permian–Jurassic
{{Geological range|Permian|Jurassic|earliest=Devonian|latest=Cretaceous}}
Permian–Jurassic
{{Geological range|68|65|earliest=Permian|latest=0|PS= (see article for discussion)}}
68–65Ma (see article for discussion)
{{Geological range|68|65.5|late Cretaceous}}
late Cretaceous
{{Geological range|68|65|}}

If you receive an error when specifying a period name, check you've spelt it right; if so, it probably isn't yet incorporated into the templates {{next period}} and {{period start}}. This is really easy to do, so feel free to add the period yourself to make future editors' lives easier!

See also

For organisms whose fossil range extends significantly before the Ediacaran, use Template:Long geological range.